Claude 5.5 Sonnet built this entire Scottish Highland steam train scene. Pure code. Zero 3D assets. • 770k tokens burned • ~1 hour generation time • Procedural viaduct, terrain, and particle smoke Is procedural 3D completely replacing traditional asset pipelines? 🚂

Your architecture is distributed across 14 microservices and 0 paying customers.

Prompt: PROJECT: HIGHLAND EXPRESS Fully Procedural 3D Steam Railway Experience You are a senior Three.js developer, procedural 3D artist, animation engineer, and technical artist. Build a visually stunning, fully procedural 3D railway scene featuring a detailed Victorian steam locomotive crossing a massive stone viaduct in the Scottish Highlands. The result should resemble a beautifully crafted miniature railway diorama brought to life, with cinematic lighting, rich environmental details, realistic mechanical animation, and atmospheric depth. TECHNOLOGY: Three.js TypeScript Vite Custom BufferGeometry Procedural shaders and materials Instanced meshes for environmental details CRITICAL REQUIREMENT: Everything must be generated procedurally using code. Do not use premade 3D models, downloaded assets, external image textures, or model files. Generate geometry, materials, terrain, vegetation, architectural structures, and animations programmatically. 1. STEAM LOCOMOTIVE Create a highly detailed Victorian steam locomotive with convincing proportions and intricate mechanical components. Include: Cylindrical boiler with detailed metal bands and seams. Large smokebox and front door with bolts and hinges. Tall chimney with a detailed rim. Steam dome and safety valves. Headlamp with a warm glow. Detailed cowcatcher and front buffers. Multiple large driving wheels with spokes. Smaller leading and trailing wheels. Connecting rods and coupling rods. Pistons and crank mechanisms. Cab with windows, controls, and interior details. Handrails, pipes, rivets, vents, and metal fittings. Procedurally generated paintwork and weathering. Use custom geometry and carefully modeled details rather than simple primitives as finished components. The locomotive must have a recognizable silhouette and convincing industrial construction. 2. MECHANICAL ANIMATION The locomotive must move continuously along the railway track. Implement: Rotating driving wheels. Connecting rods synchronized with wheel rotation. Correctly coordinated crank movement. Animated pistons where visible. Subtle locomotive suspension movement. Smoke emitted from the chimney. Steam escaping from valves and pipes. Headlamp illumination. Wheel rotation and connecting-rod movement must remain mechanically synchronized with the train's speed. 3. PASSENGER CARRIAGES Create several classic Victorian passenger carriages behind the locomotive. Each carriage should feature: Detailed body panels. Wooden or painted metal construction. Repeated windows. Roof curvature and roof seams. Doors, steps, buffers, and couplings. Underframe details and wheel assemblies. Warm interior lighting. Arrange the carriages along the railway track and make them follow the locomotive smoothly. All carriages must maintain consistent spacing and alignment when traversing curved tracks. 4. MASSIVE STONE VIADUCT Build a spectacular railway viaduct crossing a deep Highland valley. Include: Multiple massive stone arches. Thick stone pillars. Detailed masonry blocks. Individual stones with subtle variations. Decorative stone railings. Railway sleepers and metal rails. Weathering, moss, and subtle discoloration. Convincing structural proportions. Generate the arches parametrically rather than assembling the entire bridge from plain boxes. The train must travel across the top of the viaduct while the camera reveals the enormous scale of the structure. 5. RAILWAY TRACK Procedurally generate a railway track following a smooth three-dimensional path. Include: Two parallel steel rails. Repeated wooden sleepers. Rail fasteners. Gravel ballast. Track curvature and elevation changes. Use a spline-based track system. The locomotive and all carriages must follow the track accurately, including their orientation along curves. The train should not float above the rails, penetrate the bridge, or lose alignment during turns. 6. SCOTTISH HIGHLANDS ENVIRONMENT Create a beautiful Highland landscape surrounding the railway. Generate: Rolling green hills. Distant mountain ranges. Rocky cliffs and exposed stone. A deep valley beneath the viaduct. A winding river or stream. Small waterfalls where appropriate. Dense patches of pine trees. Scattered deciduous trees. Grass, shrubs, moss, and wildflowers. Rocks and boulders of varying sizes. Use procedural terrain generation, noise functions, custom geometry, and instanced vegetation. Trees must have varied silhouettes, branch structures, and foliage density. Avoid repeating the same tree or rock identically throughout the scene. Create depth through layered terrain, atmospheric fog, and distant mountain silhouettes. 7. STEAM, SMOKE, AND ATMOSPHERE Create convincing procedural particle effects. Chimney smoke: Continuous emission synchronized with locomotive movement. Expanding smoke puffs. Upward motion with wind-driven drift. Gradual fading and dissipation. Steam: Short bursts from valves and mechanical components. Expanding translucent clouds. Natural movement and fading. Environment: Light atmospheric mist in the valley. Subtle clouds moving across the sky. Gentle vegetation movement. Optional drifting particles illuminated by sunlight. Use efficient particle systems and shader-based effects where appropriate. Avoid oversized opaque particles that resemble simple spheres. 8. LIGHTING AND VISUAL STYLE Create a cinematic late-afternoon Highland atmosphere. Include: Warm sunlight illuminating the locomotive and viaduct. Cool shadows in the valley. Soft atmospheric haze. Distant mountains fading into the mist. Realistic metal reflections. Detailed stone and wood materials. Warm carriage windows. A glowing locomotive headlamp. Subtle ambient occlusion. Carefully controlled shadows. Restrained bloom and color grading. The locomotive should remain the visual centerpiece. Use a polished, stylized-realistic aesthetic with rich geometry and a miniature diorama presentation. Avoid excessive darkness, oversaturated colors, and excessive post-processing. 9. CAMERA AND PRESENTATION Create a cinematic opening sequence. Begin with a wide establishing shot showing the viaduct, valley, and approaching train. Then: Slowly approach the locomotive. Reveal the rotating wheels and connecting rods. Track alongside the moving train. Show the train crossing the stone arches. Pull back to reveal the surrounding Highland landscape. Finish with a dramatic wide shot of the entire scene. Provide interactive orbit controls and zoom. Include an optional train-follow camera that tracks the locomotive. Allow the user to pause and resume the train animation. The camera must not clip through the terrain, locomotive, or bridge. 10. AUDIO If practical, implement subtle procedural or synthesized audio: Steam locomotive chuffing synchronized with wheel rotation. Steam release sounds. Train wheel and rail ambience. Distant wind and environmental ambience. Audio must be optional and should respect browser autoplay restrictions. 11. TECHNICAL QUALITY Organize the project into logical modules: Scene and renderer. Locomotive geometry. Mechanical animation. Passenger carriages. Railway track. Viaduct generation. Terrain generation. Vegetation. Particle systems. Lighting and atmosphere. Camera and controls. Requirements: Use instancing for repeated sleepers, stones, foliage, and architectural details where appropriate. Avoid excessive draw calls and unnecessary geometry duplication. Use appropriate geometry resolution and level-of-detail techniques. Handle browser resizing correctly. Dispose of resources appropriately. Maintain smooth animation and responsive controls. Ensure all moving components remain synchronized. Avoid placeholder geometry in the final hero locomotive. 12. EXECUTION REQUIREMENTS Do not stop after writing a plan. Inspect the existing project structure, implement the complete experience, run the application, and inspect the actual rendered result. Identify visual defects and refine the locomotive, mechanical animation, viaduct, terrain, materials, and lighting. Verify that: The locomotive follows the track. Wheels rotate correctly. Connecting rods remain synchronized. Carriages follow the locomotive. The train crosses the viaduct without clipping. Smoke and steam animate correctly. Camera controls work. Performance remains acceptable. Deliver a complete, runnable Vite + Three.js project with installation instructions. FINAL QUALITY TARGET: The scene should look like an exceptionally detailed miniature steam railway brought to life: a beautiful locomotive with moving mechanical components, a massive stone viaduct, lush Highland scenery, drifting steam, and cinematic lighting. Prioritize visual quality, procedural modeling, mechanical accuracy, coherent animation, and environmental atmosphere over unnecessary features. lets build this.

"PHP is dead" - sent from a MacBook bought with money made entirely from a Laravel app.

Verified badge: done. 500 verified community: done. Just 466K impressions to go on the home stretch. Huge thanks to everyone rocking with the 3D & AI experiments so far - we’re just getting warmed up! 🤝🔥

95% of software engineers claiming they "code 10x faster with AI" are just writing unmaintainable tech debt at 10x speed.

Prompt: Build a beautiful, highly detailed, interactive 3D coastal diorama using Vite and Three.js. Everything must be generated procedurally using code. No premade 3D models, downloaded assets, image textures, external model files, or manually created assets. Generate all geometry, materials, textures, and animations programmatically. SCENE: Create a miniature rocky island surrounded by an animated ocean, featuring a tall lighthouse, a wooden fishing boat, pine trees, a winding coastal path, a tiny dock, grass, flowers, rocks, and coastal vegetation. Use a polished, stylized 3D diorama aesthetic with excellent composition and rich details. LIGHTHOUSE: Procedurally generate the cylindrical tower, alternating painted sections, balconies, railings, stairs, windows, glass lantern room, roof, and decorative details. Add a rotating beacon with a sweeping volumetric-style light beam. OCEAN: Generate a subdivided water mesh with custom GLSL shaders for animated waves, layered wave patterns, moving normals, reflections, and color gradients. Add procedural foam near the shoreline and rocks. Make the fishing boat bob, tilt, and rotate naturally in response to the simulated waves. ISLAND: Generate the island using procedural terrain geometry, layered rock formations, irregular coastlines, cliffs, and elevation variation. Add winding paths, moss, grass, tiny flowers, and vegetation using procedural geometry and instanced meshes. TREES: Generate pine trees procedurally with varied trunks, branches, and layered foliage. Add subtle wind-driven movement to branches and vegetation. ATMOSPHERE: Generate animated clouds, drifting seabirds using procedural geometry, ocean mist, and subtle atmospheric particles. Use a procedural sky shader and cinematic lighting. MATERIALS: Create all textures and surface variation procedurally using shader functions, noise, vertex colors, and generated canvas textures where appropriate. Use detailed wood grain, weathered lighthouse paint, rocky surfaces, and varied foliage. No external image textures. LIGHTING: Implement golden-hour lighting, soft shadows, realistic water reflections where practical, a warm lighthouse glow, subtle bloom, and strong warm-versus-cool color contrast. Add a day/night transition that changes the sky, lighting, lighthouse illumination, and environmental mood. INTERACTIVITY: Implement orbit controls, zoom, a day/night toggle, a wind-strength slider that affects vegetation and waves, and a lighthouse-beam toggle. Add smooth camera movement and a polished default viewing angle. TECHNICAL REQUIREMENTS: Use Vite and Three.js. Generate custom BufferGeometry, parametric surfaces, procedural curves, shader-based effects, and instanced meshes. Avoid using basic primitives as finished assets; use them only as building blocks for more detailed custom geometry. Keep the code modular, optimize draw calls, handle resizing, and ensure all visible controls work. Maintain smooth performance in a modern desktop browser. DELIVERABLE: Create a complete, runnable project. Run it, inspect the actual rendered scene, identify visual deficiencies, and refine the geometry, water, materials, lighting, and animation. Prioritize exceptional visual quality, intricate procedural modeling, convincing animated water, natural boat movement, and cinematic presentation. The final result should look like a carefully crafted miniature 3D artwork, not a collection of basic shapes.